The GPS device is a radio receiver. Almost all radio receivers have local oscillators to mix down incoming signals to an intermediate frequency for further filtering and processing. The local oscillator can behave like a low-powered radio transmitter, and cause interference to other radio receivers that are being used to receive weak signals. The problem can be eliminated by proper design and shielding, something you are never going to see on consumer-grade electronics devices, it costs money.
How many corpses do you want before you decide that it is a "real problem"?
If it was up to me, I would require that all cell phones and other intentional transmitters be placed in checked baggage. There are too many morons who believe that the rules do not apply to them.
Besides possible interference to aircraft communications and navigation systems, the flight crew wants you to pay attention to them and any instructions they might need to give you, rather than being zoned out in a video game. There is also an issue of stowing any loose items that could be a hazard in a rough landing or accident.
The programming group I worked for ordered a bunch of the original IBM PCs. They came with 160k floppy disk drives and 64k of RAM (upgraded from 16k). The included Technical Reference Manual included complete schematics for the system and I/O boards, plus a source listing of the BIOS. The only thing it didn't provide was a listing of the ROM BASIC, which was licensed from Microsoft.
IBM was following the example of Apple, who provided extensive documentation on the Apple II.
I learned how to program computers on one of these dinosaurs when I was in high school. It was a IBM System/360 clone without the reliability of a real IBM system. It supported TOS (Tape Operating System) and DOS (Disk Operating System). The school board bought one system and put a teletype and dataphone (110 bps modem) in each high school. It supported RPG, COBOL, Dartmouth BASIC and Waterloo FORTRAN. It wasn't a bad system if you ignored the fact that its MTBF was about 1 hour.
I think you need to talk to the clerk of the bankruptcy court for the proper forms. If you are listed in the company's records as a creditor, they may already have you on a mailing list for more details on the bankruptcy and how to proceed.
The discovery of the New World by the Europeans created a monetary mess when they brought back large quantities of gold and silver to Europe.
I always chuckle when I read a story about the riches that could be generated from asteroid mining. Let's assume that I snag an asteroid and recover several thousand tons of gold and platinum. What is that going to do to the market price of gold and platinum?
If I hand out copies of a list of the names, addresses, and telephone numbers of "uppity niggers" at a Ku Klux Klan rally, do you think that my actions are purely informational?
A prosecutor could argue that posting the list was a crime of conspiracy to incite violence against convention delegates, if he could convince the jury that that was the intended and foreseeable outcome of the defendant's actions.
It's nice to see that America's branch of the "Looney Left" hasn't lost their touch for shooting themselves in the foot with a howitzer.
Mainframe terminals are not "dumb". They allow the user to fill out and edit the contents of a form without using any CPU cycles on the mainframe. The mainframe receives a completed form, not hundreds of individual characters.
The quality of the audio broadcast by the typical FM station is terrible, even if the DJ can keep his mouth shut and not talk over the song. This is in large part due to attempts to sound "loud" by using very aggressive audio processing.
Police detectives use stuff like this quite often for legitimate purposes. You don't want to place an order with the neighborhood drug dealer and have the police department's phone number show up on the dealer's caller ID.
The traditional ways of voting aren't so great. Vote fraud is commonplace. I've heard people brag that they've voted more than once. Absentee ballots are abused by party hacks in every election. Non-citizens and convicted felons are allowed to vote.
Major parties use laws and armies of lawyers to keep the competition off the ballot.
Frequency errors of 50-100 ppm or greater are common on the PCs that I have installed NTP on, and those are servers and workstations with non-braindead clock handling code in the operating system (Linux, FreeBSD). Just checking the PCs at hand, one has an error of -56 ppm and the other has an error of +141 ppm. Both are from first-tier vendors.
The ionospheric delay is affected by the electron density in the ionosphere. The more free electrons, the higher the delay, compared to the speed of light in a vacuum. The delay is also frequency dependent, so comparing the delay on two different frequencies can quantify the ionospheric delay.
I want multiple feeds of high definition video. In raw form, that's 1.5 Gbps per stream. Compressed to "network feed quality", that's 45 Mbps per stream.
The suggested rule assumes that the routers are operated by someone who knows how to configure NTP and how to monitor it for errors and problems.
It requires that someone be on the staff that is knowledgable about NTP, has the time to maintain it, and cares about the quality of the time that is distributed. In too many cases, this isn't true.
I thought one of the remaining large error factors in civilian GPS systems was the variable ionospheric delay. That's why the military version uses two frequencies, so they can measure and compensate for the ionospheric delay. The civilian version just uses a constant.
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There was no legal battle.
You're ignoring out-of-band noise and spurious emissions. Not to mention intermod products produced by multiple transmitters and non-linear junctions.
The GPS device is a radio receiver. Almost all radio receivers have local oscillators to mix down incoming signals to an intermediate frequency for further filtering and processing. The local oscillator can behave like a low-powered radio transmitter, and cause interference to other radio receivers that are being used to receive weak signals. The problem can be eliminated by proper design and shielding, something you are never going to see on consumer-grade electronics devices, it costs money.
If it was up to me, I would require that all cell phones and other intentional transmitters be placed in checked baggage. There are too many morons who believe that the rules do not apply to them.
Besides possible interference to aircraft communications and navigation systems, the flight crew wants you to pay attention to them and any instructions they might need to give you, rather than being zoned out in a video game. There is also an issue of stowing any loose items that could be a hazard in a rough landing or accident.
Plus TDMA and IDEN. That's four standards and two bands, not counting bands used outside the USA.
The programming group I worked for ordered a bunch of the original IBM PCs. They came with 160k floppy disk drives and 64k of RAM (upgraded from 16k). The included Technical Reference Manual included complete schematics for the system and I/O boards, plus a source listing of the BIOS. The only thing it didn't provide was a listing of the ROM BASIC, which was licensed from Microsoft.
IBM was following the example of Apple, who provided extensive documentation on the Apple II.
I learned how to program computers on one of these dinosaurs when I was in high school. It was a IBM System/360 clone without the reliability of a real IBM system. It supported TOS (Tape Operating System) and DOS (Disk Operating System). The school board bought one system and put a teletype and dataphone (110 bps modem) in each high school. It supported RPG, COBOL, Dartmouth BASIC and Waterloo FORTRAN. It wasn't a bad system if you ignored the fact that its MTBF was about 1 hour.
Nobody ever went broke by underestimating the literacy of the American public.
I think you need to talk to the clerk of the bankruptcy court for the proper forms. If you are listed in the company's records as a creditor, they may already have you on a mailing list for more details on the bankruptcy and how to proceed.
That's out of their jurisdiction. The city's system would still have to comply with FCC regulations regarding interference etc.
I always chuckle when I read a story about the riches that could be generated from asteroid mining. Let's assume that I snag an asteroid and recover several thousand tons of gold and platinum. What is that going to do to the market price of gold and platinum?
If I hand out copies of a list of the names, addresses, and telephone numbers of "uppity niggers" at a Ku Klux Klan rally, do you think that my actions are purely informational?
It's nice to see that America's branch of the "Looney Left" hasn't lost their touch for shooting themselves in the foot with a howitzer.
Mainframe terminals are not "dumb". They allow the user to fill out and edit the contents of a form without using any CPU cycles on the mainframe. The mainframe receives a completed form, not hundreds of individual characters.
Are the satellite radio services any better?
It isn't entrapment if the target's occupation is full-time drug dealer.
Police detectives use stuff like this quite often for legitimate purposes. You don't want to place an order with the neighborhood drug dealer and have the police department's phone number show up on the dealer's caller ID.
The traditional ways of voting aren't so great. Vote fraud is commonplace. I've heard people brag that they've voted more than once. Absentee ballots are abused by party hacks in every election. Non-citizens and convicted felons are allowed to vote. Major parties use laws and armies of lawyers to keep the competition off the ballot.
Frequency errors of 50-100 ppm or greater are common on the PCs that I have installed NTP on, and those are servers and workstations with non-braindead clock handling code in the operating system (Linux, FreeBSD). Just checking the PCs at hand, one has an error of -56 ppm and the other has an error of +141 ppm. Both are from first-tier vendors.
The ionospheric delay is affected by the electron density in the ionosphere. The more free electrons, the higher the delay, compared to the speed of light in a vacuum. The delay is also frequency dependent, so comparing the delay on two different frequencies can quantify the ionospheric delay.
I want multiple feeds of high definition video. In raw form, that's 1.5 Gbps per stream. Compressed to "network feed quality", that's 45 Mbps per stream.
The suggested rule assumes that the routers are operated by someone who knows how to configure NTP and how to monitor it for errors and problems. It requires that someone be on the staff that is knowledgable about NTP, has the time to maintain it, and cares about the quality of the time that is distributed. In too many cases, this isn't true.
I thought one of the remaining large error factors in civilian GPS systems was the variable ionospheric delay. That's why the military version uses two frequencies, so they can measure and compensate for the ionospheric delay. The civilian version just uses a constant.
Less phase noise, which improves overall system performance.
A more accurate timing reference would make it easier for spread-spectrum systems to acquire and maintain lock on received signals.